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Flexible fuel variable boost hybrid powertrain

A hybrid and flexible fuel technology, applied in hybrid vehicles, pneumatic power devices, power devices, etc.

Inactive Publication Date: 2009-05-13
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such improved operation is often compromised by requiring the engine to be able to operate on a variety of fuels and fuel mixtures

Method used

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  • Flexible fuel variable boost hybrid powertrain
  • Flexible fuel variable boost hybrid powertrain
  • Flexible fuel variable boost hybrid powertrain

Examples

Experimental program
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Embodiment Construction

[0015] The following description is merely illustrative in nature and does not limit the disclosure, application or use.

[0016] Referring to FIG. 1 , a first embodiment of a flex-fuel, spark-ignition, variable boost, supercharged hybrid powertrain in accordance with the present invention is shown and generally designated by the reference numeral 10 . The flexible fuel hybrid powertrain 10 includes an internal combustion engine 12 which typically has 4, 6 or 8 pistons and cylinders. The pistons are connected to a crankshaft or output shaft 14 which directly drives a multi-speed hybrid transmission 16 (typically an automatic). The hybrid transmission 16 includes, for example, a plurality of planetary gear sets, clutches and brakes that provide a plurality of successive gear ratios or speed ratio outputs to the drive shaft 18 and a final drive 22 that includes at least one Differential axles and tire and wheel assemblies (neither shown). The hybrid transmission 16 also includ...

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PUM

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Abstract

The present invention provides a flexible fuel, spark ignition, variable boost, hybrid powertrain having a supercharger or a turbocharger. In a first embodiment, a spark ignition, internal combustion engine includes a supercharger driven by the engine output through a variable speed drive. A hybrid transmission having an internal electric motor / generator provides supplemental power. A plurality of sensors including a fuel sensor provide data to a master engine controller which controls the operation of a transmission controller, the variable speed supercharger, the fuel supply and the ignition system. In a second embodiment, the motor / generator is associated with the supercharger and is connected therewith through a variable speed drive and also connected to the engine output. In a third embodiment, the supercharger is replaced with a turbocharger.

Description

[0001] This application claims priority to US Provisional Application No. 60 / 956,537, filed August 17, 2007. The content of the above application is incorporated herein by reference. technical field [0002] The present invention relates to flexible fuel variable boost hybrid powertrains, and more particularly to flexible fuel variable boost hybrid powertrains having an internal combustion engine including a supercharger or turbocharger. Background technique [0003] The statements in this section merely provide background information related to the present disclosure and may or may not constitute prior art. [0004] Spark-ignition internal combustion engines, especially those structures used in passenger cars and light trucks, have been the subject of extensive research and development efforts. One of the results of several recent such efforts includes a hybrid powertrain, which can be broadly defined as a powertrain employing an internal combustion engine and an electric ...

Claims

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Application Information

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IPC IPC(8): B60K6/20B60K6/24B60K6/26
CPCY02T10/6286Y02T10/6226Y02T10/6295F02B33/32B60W10/06B60W2560/04Y02T10/144F02D19/088F02B37/22F02B37/18B60W10/08B60Y2400/435Y02T10/52F02D41/0007F02D19/084F02D2200/0611B60W2560/06B60K6/365B60W20/00F02D41/0025B60K6/485B60K6/547B60L11/14Y02T10/7077B60K6/24B60L50/16B60W2530/211B60W2530/213Y02T10/12Y02T10/30Y02T10/40Y02T10/62Y02T10/7072B60W20/30Y02T10/70
Inventor K·-J·吴J·C·埃姆斯利J·J·张
Owner GM GLOBAL TECH OPERATIONS LLC